Temperature Modulation Method for In-Situ Measurement of Surface Temperature and Emissivity

这是SBIR第一阶段项目，旨在开发一种新的非侵入性表面温度测量技术，用于现场测量温度和发射率。该技术采用待测量表面温度的微小局部调制以及对调制表面辐射的检测。通过调制表面辐射，排除了来自其他周围物体的外来辐射，并且调制辐射的光谱形状是表面温度的函数。该项目的目标是在1700K的温度范围内演示该技术。该方法将主要是试验性的，将涉及建立一个测试系统，并将该技术获得的结果与传统技术的结果进行比较。该设备的成功应用将有助于监测工业过程、锅炉运行、燃气轮机、喷气发动机和火箭的诊断以及各种控制应用。

This is a SBIR Phase I project to develop a novel non-intrusive surface temperature measurement technique for the in- situdetermination of both temperature and emissivity. The technique employs small local modulation of the temperature of the surface to be measured and detection of the modulated surface radiation. By modulating the surface radiation, extraneous radiation from other surrounding bodies is excluded, and the spectral shape of the modulated radiation is a function of surface temperature. The objective of the project is to demonstrate the technique at temperatures in the range of 1700 K. The approach will be primarily experimental and will involve the construction of a test system, and comparison of the results obtained from this technique with those of conventional techniques. The successful application of this device would be useful in monitoring industrial processes, boiler operation, diagnostics in gas turbines, jet engines, and rockets, and various control applications.